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Finding the Fourth Proportional to 1,498,922.72, 2,068,469.52 and 819,844.64

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Solution

The fourth proportional to 1,498,922.72, 2,068,469.52 and 819,844.64 is: 1,131,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498,922.72 : 2,068,469.52 = 819,844.64 : x
  2. Step 2: Convert to fraction form
    1,498,922.72/2,068,469.52 = 819,844.64/x
  3. Step 3: Cross multiply
    1,498,922.72x = 2,068,469.52 × 819,844.64
  4. Step 4: Simplify right side
    1,498,922.72x = 1,695,823,648,975.37
  5. Step 5: Solve for x
    x = 1,695,823,648,975.37/1,498,922.72
  6. Step 6: Final answer
    x = 1,131,361.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.